The season finale of Game of Thrones had plenty of shocks to go around, but if you're a fan ofGeorge R.R. Martin's books there was one twist you expected to see that definitely did not show up. Yeah, I'm talking about Lady Stoneheart. The return of Catelyn Stark as a vengeful zombie did not happen at the end of the episode, as many book fans expected her to. After all, she first appears in the epilogue of A Storm of Swords and that shocker is exactly the kind of way that the show has ended its past three seasons. But book fans waited and waited as the minutes of "The Children" rolled by, but no Lady Stoneheart appeared.

In an interview with Entertainment Weekly, the episode's director Alex Graves explained the decision to leave Lady Stoneheart out:

To bring back Michelle Fairley, one of the greatest actresses around, to be a zombie for a little while — and just kill people? It is really sort of, what are we doing with that? How does it play into the whole story in a way that we're really going to like? It just didn't end up being a part of what was going to happen this season.

So will Lady Stoneheart make her grand entrance in season 5? Even Graves doesn't know the answer.

As somebody who's worked deep inside the show, begged to have an answer and wants more than anybody, I have no idea.

Book fans were not pleased about this decision.

No Lady Stoneheart made Game of Thrones a complete failure. Could have been the best hour of TV ever. #GoT